![Section 19, Chapter 4: High-grade Spondylolisthesis: Pediatric and Adults : Wheeless' Textbook of Orthopaedics Section 19, Chapter 4: High-grade Spondylolisthesis: Pediatric and Adults : Wheeless' Textbook of Orthopaedics](http://www.wheelessonline.com/wp-content/uploads/2019/08/Figure-4-5.jpg)
Section 19, Chapter 4: High-grade Spondylolisthesis: Pediatric and Adults : Wheeless' Textbook of Orthopaedics
![Postoperative 320 multi-slice computed tomography in assessment of pedicle screw insertion in thoraco-lumbar fixation | Egyptian Journal of Radiology and Nuclear Medicine | Full Text Postoperative 320 multi-slice computed tomography in assessment of pedicle screw insertion in thoraco-lumbar fixation | Egyptian Journal of Radiology and Nuclear Medicine | Full Text](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs43055-019-0050-7/MediaObjects/43055_2019_50_Fig1_HTML.png)
Postoperative 320 multi-slice computed tomography in assessment of pedicle screw insertion in thoraco-lumbar fixation | Egyptian Journal of Radiology and Nuclear Medicine | Full Text
![Single position L5-S1 lateral ALIF with simultaneous robotic posterior fixation is safe and improves regional alignment and lordosis distribution index | European Spine Journal Single position L5-S1 lateral ALIF with simultaneous robotic posterior fixation is safe and improves regional alignment and lordosis distribution index | European Spine Journal](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00586-023-07841-y/MediaObjects/586_2023_7841_Fig4_HTML.jpg)
Single position L5-S1 lateral ALIF with simultaneous robotic posterior fixation is safe and improves regional alignment and lordosis distribution index | European Spine Journal
![The result of S1 double screw fixation in patients not suited for L4 and/or L5 pedicle screw insertion | Acta Neurochirurgica The result of S1 double screw fixation in patients not suited for L4 and/or L5 pedicle screw insertion | Acta Neurochirurgica](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00701-013-1954-z/MediaObjects/701_2013_1954_Fig1_HTML.gif)
The result of S1 double screw fixation in patients not suited for L4 and/or L5 pedicle screw insertion | Acta Neurochirurgica
![Accuracy of Free-Hand Pedicle Screws in the Thoracic and Lumbar Spine: Analysis of 6816 Consecutive Screws | Semantic Scholar Accuracy of Free-Hand Pedicle Screws in the Thoracic and Lumbar Spine: Analysis of 6816 Consecutive Screws | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/7ddc4a15a50e7203a1b1cd59f8d01f12136a313e/4-Figure3-1.png)
Accuracy of Free-Hand Pedicle Screws in the Thoracic and Lumbar Spine: Analysis of 6816 Consecutive Screws | Semantic Scholar
![Reinforcement of lumbosacral instrumentation using S1–pedicle screws combined with S2–alar screws | Operative Orthopädie und Traumatologie Reinforcement of lumbosacral instrumentation using S1–pedicle screws combined with S2–alar screws | Operative Orthopädie und Traumatologie](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00064-012-0160-0/MediaObjects/64_2012_160_Fig4_HTML.gif)
Reinforcement of lumbosacral instrumentation using S1–pedicle screws combined with S2–alar screws | Operative Orthopädie und Traumatologie
![Transdiscal screw versus pedicle screw fixation for high-grade L5-S1 isthmic spondylolisthesis in patients younger than 60 years: a case–control study | European Spine Journal Transdiscal screw versus pedicle screw fixation for high-grade L5-S1 isthmic spondylolisthesis in patients younger than 60 years: a case–control study | European Spine Journal](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00586-016-4550-0/MediaObjects/586_2016_4550_Fig1_HTML.jpg)
Transdiscal screw versus pedicle screw fixation for high-grade L5-S1 isthmic spondylolisthesis in patients younger than 60 years: a case–control study | European Spine Journal
![L5 nerve root injury caused by anterolateral malpositioning of loosened S1 pedicle screws: illustrative cases in: Journal of Neurosurgery: Case Lessons Volume 1 Issue 25 (2021) Journals L5 nerve root injury caused by anterolateral malpositioning of loosened S1 pedicle screws: illustrative cases in: Journal of Neurosurgery: Case Lessons Volume 1 Issue 25 (2021) Journals](https://thejns.org/caselessons/view/journals/j-neurosurg-case-lessons/1/25/full-CASE21207f4.jpg)
L5 nerve root injury caused by anterolateral malpositioning of loosened S1 pedicle screws: illustrative cases in: Journal of Neurosurgery: Case Lessons Volume 1 Issue 25 (2021) Journals
![Traumatic dislocation of the S1 polyaxial pedicle screw head: a case report - Du Plessis - Journal of Spine Surgery Traumatic dislocation of the S1 polyaxial pedicle screw head: a case report - Du Plessis - Journal of Spine Surgery](https://cdn.amegroups.cn/journals/jss/files/journals/24/articles/3732/public/3732-PB5-R1.png/w300)
Traumatic dislocation of the S1 polyaxial pedicle screw head: a case report - Du Plessis - Journal of Spine Surgery
![JCM | Free Full-Text | Robot-Assisted Pedicle Screw Placement Led to Lower Screw Loosening Rate than Fluoroscopy-Guided Technique in Transforaminal Lumbar Interbody Fusion for Lumbar Degenerative Disease: A Single-Center Retrospective Study JCM | Free Full-Text | Robot-Assisted Pedicle Screw Placement Led to Lower Screw Loosening Rate than Fluoroscopy-Guided Technique in Transforaminal Lumbar Interbody Fusion for Lumbar Degenerative Disease: A Single-Center Retrospective Study](https://pub.mdpi-res.com/jcm/jcm-11-04989/article_deploy/html/images/jcm-11-04989-g003.png?1661427076)
JCM | Free Full-Text | Robot-Assisted Pedicle Screw Placement Led to Lower Screw Loosening Rate than Fluoroscopy-Guided Technique in Transforaminal Lumbar Interbody Fusion for Lumbar Degenerative Disease: A Single-Center Retrospective Study
![Iatrogenic Sacroiliac Joint Syndrome After Percutaneous Pedicle Screw Fixation at the L5‐S1 Level: Case Report | Semantic Scholar Iatrogenic Sacroiliac Joint Syndrome After Percutaneous Pedicle Screw Fixation at the L5‐S1 Level: Case Report | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/5568886e866f24a6d06392617978b86f09a668ce/2-Figure2-1.png)
Iatrogenic Sacroiliac Joint Syndrome After Percutaneous Pedicle Screw Fixation at the L5‐S1 Level: Case Report | Semantic Scholar
![New-Onset Radiculopathy on Unaffected Side Post Spine Surgery-S1 Screw Irritating L5 Nerve Root: A Case Report New-Onset Radiculopathy on Unaffected Side Post Spine Surgery-S1 Screw Irritating L5 Nerve Root: A Case Report](https://www.hilarispublisher.com/articles-images/spine-realigned-medially-9-455-g006.png)
New-Onset Radiculopathy on Unaffected Side Post Spine Surgery-S1 Screw Irritating L5 Nerve Root: A Case Report
![Does a deep seated L5 vertebra position with respect to the iliac crests affect the accuracy of percutaneous pedicle screw placement at lumbosacral junction? | BMC Musculoskeletal Disorders | Full Text Does a deep seated L5 vertebra position with respect to the iliac crests affect the accuracy of percutaneous pedicle screw placement at lumbosacral junction? | BMC Musculoskeletal Disorders | Full Text](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs12891-017-1537-x/MediaObjects/12891_2017_1537_Fig2_HTML.gif)
Does a deep seated L5 vertebra position with respect to the iliac crests affect the accuracy of percutaneous pedicle screw placement at lumbosacral junction? | BMC Musculoskeletal Disorders | Full Text
![Illustration showing anterolateral S1 screw malposition bilaterally.... | Download Scientific Diagram Illustration showing anterolateral S1 screw malposition bilaterally.... | Download Scientific Diagram](https://www.researchgate.net/publication/339749459/figure/fig3/AS:866630687006721@1583632265794/Illustration-showing-anterolateral-S1-screw-malposition-bilaterally-Right-S1-screw-is.png)
Illustration showing anterolateral S1 screw malposition bilaterally.... | Download Scientific Diagram
![Three-dimensional fluoroscopic navigation versus fluoroscopy-guided placement of pedicle screws in L4-L5-S1 fixation: single-centre experience of pedicular accuracy and S1 cortical fixation of 810 screws - García-Fantini - Journal of Spine Surgery Three-dimensional fluoroscopic navigation versus fluoroscopy-guided placement of pedicle screws in L4-L5-S1 fixation: single-centre experience of pedicular accuracy and S1 cortical fixation of 810 screws - García-Fantini - Journal of Spine Surgery](https://cdn.amegroups.cn/journals/jss/files/journals/24/articles/4333/public/4333-PB4-1443-R1.png/w300)
Three-dimensional fluoroscopic navigation versus fluoroscopy-guided placement of pedicle screws in L4-L5-S1 fixation: single-centre experience of pedicular accuracy and S1 cortical fixation of 810 screws - García-Fantini - Journal of Spine Surgery
![Frontiers | Biomechanical comparative analysis of conventional pedicle screws and cortical bone trajectory fixation in the lumbar spine: An in vitro and finite element study Frontiers | Biomechanical comparative analysis of conventional pedicle screws and cortical bone trajectory fixation in the lumbar spine: An in vitro and finite element study](https://www.frontiersin.org/files/Articles/1060059/fbioe-11-1060059-HTML/image_m/fbioe-11-1060059-g002.jpg)
Frontiers | Biomechanical comparative analysis of conventional pedicle screws and cortical bone trajectory fixation in the lumbar spine: An in vitro and finite element study
![A, B) Sub-S1 alar screw. Alar screws were added to enhance fixation of... | Download Scientific Diagram A, B) Sub-S1 alar screw. Alar screws were added to enhance fixation of... | Download Scientific Diagram](https://www.researchgate.net/publication/276231789/figure/fig3/AS:643930316103680@1530536359191/A-B-Sub-S1-alar-screw-Alar-screws-were-added-to-enhance-fixation-of-sacrum-for.png)